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qtmux: Set Closed Caption track width/height to that of the first video track

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Otherwise software like Premiere or Final Cut Pro won't like our files.

https://bugzilla.gnome.org/show_bug.cgi?id=797111
This commit is contained in:
Sebastian Dröge 2018-09-18 18:13:52 +03:00
parent 03a8e6af72
commit c6e07a6eee
1 changed files with 41 additions and 0 deletions
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41
gst/isomp4/gstqtmux.c
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@ -3033,6 +3033,47 @@ gst_qt_mux_start_file (GstQTMux * qtmux)
qtmux->timescale = suggested_timescale;
}
/* Set width/height of any closed caption tracks to that of the first
* video track */
{
guint video_width = 0, video_height = 0;
GSList *walk;
for (walk = qtmux->sinkpads; walk; walk = g_slist_next (walk)) {
GstCollectData *cdata = (GstCollectData *) walk->data;
GstQTPad *qpad = (GstQTPad *) cdata;
if (!qpad->trak)
continue;
/* Not closed caption */
if (qpad->trak->mdia.hdlr.handler_type != FOURCC_clcp)
continue;
if (video_width == 0 || video_height == 0) {
GSList *walk2;
for (walk2 = qtmux->sinkpads; walk2; walk2 = g_slist_next (walk2)) {
GstCollectData *cdata2 = (GstCollectData *) walk2->data;
GstQTPad *qpad2 = (GstQTPad *) cdata2;
if (!qpad2->trak)
continue;
/* not video */
if (!qpad2->trak->mdia.minf.vmhd)
continue;
video_width = qpad2->trak->tkhd.width;
video_height = qpad2->trak->tkhd.height;
}
}
qpad->trak->tkhd.width = video_width << 16;
qpad->trak->tkhd.height = video_height << 16;
}
}
/* initialize our moov recovery file */
if (qtmux->moov_recov_file_path) {
gst_qt_mux_prepare_moov_recovery (qtmux);